Skype is software that enables you to make free calls anywhere in the world. Skype uses innovative P2P (peer-to-peer) technology to connect you with other users. It offers several features, including SkypeOut calling from Skype to regular and mobile phones worldwide, conference calling, and secure file transferring. Skype calls have better sound quality than your regular phone and are highly secure, with end-to-end encryption. Improves video quality for video calls.

Skype 6.3 for Windows now offers Outlook integration and a visual update to the toolbar. This is an exciting update because the time spent on email by many people is still significant. And if you're like many of us who work at Skype, we spend lots of time toggling between our email and Skype desktop clients. Now it's really convenient to send a Skype instant message, start a free Skype to Skype call, or make a call to any mobile or landline - all within Outlook.